Role of image guided fine needle aspiration cytology in cases of

International J. of Healthcare and Biomedical Research, Volume: 03, Issue: 03, April 2015, Pages 149-155
Original article:
Role of image guided fine needle aspiration cytology in cases of hepatic
mass lesions
Avinash Mane1, Sujata R. Kanetkar2 Sneha Saini3, Neerav Saini3
1Assistant
2HOD
professor, Krishna Institute of medical sciences university, Karad, India.
&Professor, Krishna Institute of medical sciences university, Karad, India
3Assistant
lecturer, Krishna Institute of medical sciences university, Karad, India.
Corresponding author: Dr Avinash Mane
.
Abstract:
The diagnosis and management of various hepatic mass lesions is a common clinical problem and their appropriate clinical
management depends on accurate diagnosis .Image guided FNAC is a rapid, reliable and cost effective method for diagnosis of
hepatic mass lesions.A retrospective study was done to evaluate Role of image guided fine needle aspiration cytology (FNAC) in
hepatic mass lesions.
A total number of 52 image guided FNAC of hepatic mass lesions were performed in Department of Pathology in KIMSU, Karad
from Jan 2012 to Dec 2013.Wet fixed and air dried smears were stained with Haematoxylin and Eosin (H&E) and Leishman stain
respectively.
Among 52 cases included in the study, malignant cases were 42(80.76%), benign cases were 5 (9.61%) and inadequate for
opinion were 5(9.61%). Metastatic adenocarcinoma was most common diagnosis in 22 (52.38%) cases followed by
hepatocellular carcinoma. Frequency of hepatic mass lesions was more common in males i.e. 31(59.61%). HBsAg positivity was
observed in 61% cases of hepatocellular carcinoma. More cases were fine needle aspirated under Ultrasonography (USG)
guidance i.e. 48(92.30%) than CT guidance i.e.4 (7.69%).Based on diagnosis of USG guided FNAC of hepatic lesions and other
investigations, patients were treated accordingly by the clinicians.
Image guided FNAC is extremely useful to establish diagnosis of hepatic mass lesions as the procedure is simple, safe, minimally
invasive and OPD based. There were no complications as prior prothrombin time and post FNAC patient observation for 2-3
hours was done.
Introduction:
primary liver tumors (Benign and malignant),
Liver is involved in many non-neoplastic and
metastatic deposits, congenital and acquired cysts,
neoplastic diseases .The diagnosis and management
abscesses and granulomas.
of various hepatic mass lesions is a common clinical
Fine needle aspiration cytology is of latest and
problem and their appropriate clinical management
extensively utilized in the diagnosis of lesions aided
depends on accurate diagnosis. Liver disease is the
by image guidance, it is fast becoming an initial
third most
common
1
cause of death among
2
investigation of choice for various hepatic lesions. It
individuals between age 25 and 59 years . The
provides a definitive diagnosis in most patients at low
differential diagnosis of hepatic mass lesions includes
cost with minimal trauma.
149
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ISSN: 2319-7072
International J. of Healthcare and Biomedical Research, Volume: 03, Issue: 03, April 2015, Pages 149-155
The aim of the present study was to describe
parameters(LFT,HBsAg,HCV) and tumor markers
cytomorphological features of various liver lesions
(AFP,CEA,CA-125) were recorded. Prothrombin
with their clinical correlation and to evaluate the
time , bleeding time were checked for each and every
diagnostic accuracy of image-guided FNAC in the
patient just before performing the procedure.
diagnosis of liver diseases .
Standard technique was applied using 22-gauge
Material and methods:
lumbar puncture needle attached to a 10ml syringe
The total number of 52 image guided FNAC of
and anti-cholinergic drug, atropine was given just
hepatic mass lesions were performed in Department
before the procedure. The area was cleaned with the
of pathology, KIMSU, Karad, Maharashtra from Jan
antiseptic and during suspended respiration needle
2012 to Dec 2013. Detailed clinical information
was introduced percutaneously into the hepatic lesion
regarding presenting symptoms, history of pre-
under image –guidance, smears were made from the
existing liver diseases ,personal history ,family
aspirated material and were stained with H&E and
history ,any of the other malignancy detected,
leishman stains.
background
cirrhosis
and
bile
canalicular
Observations:
TABLE-1: Distribution of liver aspirates:Aspirates
No. of cases
Percentage
Benign aspirates with 1 case of liver
05
9.61%
Malignant aspirates
42
80.76%
Inadequate aspirates
05
9.61%
Total
52
100%
abscess
TABLE-2: Different types of malignant tumors diagnosed in liver on image guided FNAC in our study.
Malignant lesions
No. of cases
Percentage
A)Metastatic adenocarcinoma
24
57.14%
B)Hepatocellular carcinoma
15
35.71%
c) spindle cell tumor S/O GIST
02
4.76%
D)MPN-U
01
2.36%
TOTAL
42
100%
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International J. of Healthcare and Biomedical Research, Volume: 03, Issue: 03, April 2015, Pages 149-155
TABLE-3:-Different grades of hepatocellular carcinoma
Grade I
Well differentiated
Grade II
Moderately differentiated
Grade III
Poorly differentiated
GRADES
OF
NO.OF
% OF
HCC
CASES
CASES
Grade I
2
13.33%
Grade II
9
60%
Grade III
4
26.67%
Total
15
100%
TABLE-4: Distribution of cases as per image guidance
Imaging Method
No.of cases
percentage
USG
48
92.30%
CT
04
7.69%
TABLE-5:-HbsAg positivity in HCC
HbsAg
No. of cases
Percentage
Positive
9
60%
Negative
6
40%
Total
15
100%
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International J. of Healthcare and Biomedical Research, Volume: 03, Issue: 03, April 2015, Pages 149-155
TABLE-6:-Alcohol consumption in HCC cases
No. of cases
Percentage
Alcoholic
5
33.33%
Non-alcoholic
10
66.67%
Total
15
100%
Table 7: AFP correlation with Hepatic mass lesions
GRADE OF HCC
AFP LEVELS AVAILABLE IN
HIGH LEVELS
NORMAL LEVELS
GRADE I
2
1(50%)
1(50%)
GRADE II
8
5(62.5%)
3(37.5)
GRADE III
4
3(75%)
1(25%)
TOTAL
14
9(64.28%)
5(35.72%)
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International J. of Healthcare and Biomedical Research, Volume: 03, Issue: 03, April 2015, Pages 149-155
Fig-1: Acinar pattern of malignant cells S/O metastatic adenocarcinoma (H&E,100X)
Fig-2: Numerous clusters of spindeloid cells in case s/o GIST (H&E,1000x)
A)
B)
Fig-3 A& B:Sheets of carcinoma cells traversed as well as lined by endothelial cells suggestive of Hepatocellular
carcinoma (HCC) (H&E,100x)
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FIG-4:Cluster of immature myeloid cells seen on FNAC (H&E,100x)
Image-guided FNAC of liver lesions was performed
AFP levels were available in 35 out of 52 cases of
on 52 cases and studied , it was conclusive in 47
hepatic mass lesions and
cases (90.38%). Almost similar results were seen
AFP levels were done in 14 cases of HCC. Higher
with studies done by Rasania A.et al, Ho CS et al.3,4
levels were more in higher grades which is
The distribution of liver aspirates are given in
comparable with Swamy MCM et al5
Table:1 out of total aspirates benign were 9.61%
Discussion:
cases ,malignant were 80.76% and non-representative
FNAC is a very useful procedure particularly
samples were 9.61% as it contain only few scattered
diagnosis of focal lesions, if combined with image
hepatocytes and blood.
guidance, its utility further increases. Only known
Metastatic tumors were the most common among the
contraindication of FNAC for hepatic mass lesions is
malignant
27
bleeding diathesis that is why patients were screened
(64.29%)cases. The different types of metastatic
for any bleeding abnormality by doing bleeding time
lesions
liver
lesions
and
constituted
out of 15 cases of HCC,
22
(52.38%).
and clotting time .
Gastrointestinal stromal tumors (GIST)
2(4.76%),
Hepatic mass lesions are very notorious for its
myeloproliferative lesion unclassifiable 1(2.38%)
clinical presentation. Patient’s main complaints were
which is comparable with study done by Rasania A.et
pain in abdomen (right hypochondrium), weight loss
al3. The commonest primary hepatic lesion was
,anorexia and few were presented with palpable
hepatocellular carcinoma (35.71%) and it was
abdominal mass .
differentiated from benign conditions like liver
We studied and evaluated different features in
abscess (1.92%). Hepatocellular carcinoma was
different lesions as described by Ali et al and Tau et
further differentiated into three grades, grade I were
al2,6 to grade hepatocellular carcinomas into grade I
2(13.33%), grade II were 9(60%) and grade III were
,II and III. The cytomorphological features were
4(26.67%) and it was comparable with Rasania A. et
cellular
were
adenocarcinoma
3
arrangement,
cell
size,
N/C
ratio,
al .
cohesiveness of cells ,nuclear shape, size, location,
Most of the FNAC procedure were done under USG
multinucleation, prominent nucleolus, amount of
guidance
cytoplasm, vacuolation and bile production.
48(92.30%). HBsAg positivity amongst
HCC cases were seen in 9 cases (60%). Alcohol
It is very important to differentiate metastatic
consumption was seen in 5 cases (30%).
adenocarcinoma
from
primary
hepatocellular
carcinoma as treatment modalities differ completely.
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International J. of Healthcare and Biomedical Research, Volume: 03, Issue: 03, April 2015, Pages 149-155
FNAC is reliable for this differentiation however in
marrow examination was not fitting into standard
few cases of poorly differentiated hepatocellular
myeloproliferative lesion so primary diagnosis was
carcinoma, it becomes difficult to differentiate from
given as MPN-Unclassifiable.
metastatic adenocarcinoma.
In two cases it was difficult to differentiate whether it
Metastatic adenocarcinoma showed glandular or
was
acinar pattern, intra and extracytoplasmic mucin.
adenocarcinoma. So diagnosis of only positive for
These tumors mainly came from GIT ,gall bladder,
carcinoma cells was given. In 4 cases smears
breast and prostrate.
revealed only hemorrhagic material so diagnosis was
A single case of hepatic abscess was presented with
not possible.
high grade fever pain in right upper quadrant USG
By applying stastical tests i.e. test of significance ,
suggested a focal mass lesion in right lobe of liver.
for diagnosed cases Vs inadequate for opinion in
FNAC done revealed abundant polymorphonuclear
total FNAC diagnosis , P value for diagnosed cases
cells based on which diagnosis of hepatic abscess
was 0.001(p<0.05) it was concluded that FNAC for
was given and rest of the aspirated material was sent
hepatic mass lesions is extremely valuable tool for
for microbiological culture. E.coli was isolated.
diagnosis.
Two cases of metastatic GIST were noted in our
Conclusion:
study primary was from stomach. Diagnosis of
Thus to conclude, in a peripheral health set up we can
primary GIST was confirmed by IHC (CD117
use image- guided FNAC as a diagnostic tool for
positivity). FNAC aspirates revealed numerous
hepatic mass lesions.
spindle cells arranged in sheets, clusters and scattered
It is safe, less traumatic, OPD based and cost-
singly.
effective tool.
primary
liver
malignancy
or
metastatic
One case of metastatic myeloproliferative lesion was
diagnosed .Hematological investigations and bone
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